Docs » Autodocs » graphics.library » SetRGB4
SetRGB4 -- Set one color register for this viewport.
SetRGB4( vp, n, r, g, b)
a0 d0 d1:4 d2:4 d3:4
void SetRGB4( struct ViewPort *, SHORT, UBYTE, UBYTE, UBYTE );
Change the color look up table so that this viewport displays
the color (r,g,b) for pen number n.
vp - pointer to viewport structure
n - the color number (range from 0 to 31)
r - red level (0-15)
g - green level (0-15)
b - blue level (0-15)
If there is a ColorMap for this viewport, then the value will
be stored in the ColorMap.
The selected color register is changed to match your specs.
If the color value is unused then nothing will happen.
NOTE: Under V36 and up, it is not safe to call this function
from an interrupt, due to semaphore protection of graphics
copper lists.
LoadRGB4(), GetRGB4(), <graphics/view.h>
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